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Syktyvkar
@Syktyvkar
March 2022
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Даю много баллов,помогите!!!
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IrkaShevko
Verified answer
1) f'(x) = 15x² - 8x
f'(2) = 60 - 16 = 44
2) f'(x) = 3cosx - sinx + 1/sin²x
f'(π/2) = 0 - 1 + 1 = 0
3) f'(x) = 12x² - 12x = 0
x(x-1) = 0
x = 0 U x = 1
4) f'(x) = -2sinx + √3 = 0
sinx = √3/2
x = (-1)ⁿ*π/3 + πn, n∈Z
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Answers & Comments
Verified answer
1) f'(x) = 15x² - 8xf'(2) = 60 - 16 = 44
2) f'(x) = 3cosx - sinx + 1/sin²x
f'(π/2) = 0 - 1 + 1 = 0
3) f'(x) = 12x² - 12x = 0
x(x-1) = 0
x = 0 U x = 1
4) f'(x) = -2sinx + √3 = 0
sinx = √3/2
x = (-1)ⁿ*π/3 + πn, n∈Z